Pyrosulfuric acid, also known as sulfuric acid monohydrate, is a strong mineral acid widely used in industrial chemistry. It can be used in the production of fertilizers, leather tanning agents, and a variety of synthetic dyes and pigments.
When rubber is exposed to pyrosulfuric acid, it can cause severe degradation, leading to cracking, swelling, hardening, and a decrease in the rubber's overall strength. Additionally, the acid can leach out plasticizers, leading to embrittlement and a decrease in the rubber's flexibility.
Fluorosilicone o-rings are a hybrid of silicone and FKM resulting in great jet fuel resistance with high and low temperature performance. Also widely used in semiconductor Ashing equipment with strong resistance to oxygen plasma, FVMQ fluorosilicone o-rings also feature excellent flexibility, compression resistance, aging and sunlight resistance, and overall wide range of basic chemical resistance.
View some of our other material compatibility ratings with PYROSULFURIC ACID. If you don't see what you're looking for or need more guidance, our team of experienced sealing design engineers can help select the best sealing products and material for your specific application.View Full Chemical Compatibility Guide